AutoPot 10L CO2 Generator Refill[embed]https: www. youtube. com watch? v=1lgqxMe7vfc[ embed] MotherNature CO2 Refills are the eco friendly, long life, money saving solution to recharging your CO2 Generator. Depending on usage, the specially formulated compost and natural bacteria in your Generator will last up to six months. Once the contents of the Generator are depleted you can simply empty the Generator out, clean it down, and drop in a Refill. Its always handy to have a CO2